issue_comments: 373871784

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https://github.com/pydata/xarray/issues/1995#issuecomment-373871784 https://api.github.com/repos/pydata/xarray/issues/1995 373871784 MDEyOklzc3VlQ29tbWVudDM3Mzg3MTc4NA== 1217238 2018-03-16T23:32:07Z 2018-03-16T23:32:07Z MEMBER

Modify apply_ufunc: remove the check that the input_core_dims must not be chunked add parameter output_chunks

My main concern is ensuring that someone does not inadvertently apply a function not designed for multiple chunks to dask arrays. For example, suppose the function being applied is np.median.

Some loud flag that makes it very obvious what's going on seems like a good idea, e.g., possibly_chunked_core_dims=['x']?

Then we also need some sort of guarantee that chunked core dimensions aren't entirely removed, or else xarray/dask won't know how to stack them back up. I guess we could check to make sure that at least as many output core dimensions appear as appear in inputs cor edimensions?

 
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